312143033143420 has 24 divisors (see below), whose sum is σ = 655502152970448. Its totient is φ = 124856873568000.

The previous prime is 312143033143399. The next prime is 312143033143463. The reversal of 312143033143420 is 24341330341213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13629166 + ... + 28461205.

It is an arithmetic number, because the mean of its divisors is an integer number (27312589707102).

Almost surely, 2^{312143033143420} is an apocalyptic number.

It is an amenable number.

312143033143420 is an abundant number, since it is smaller than the sum of its proper divisors (343359119827028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312143033143420 is a wasteful number, since it uses less digits than its factorization.

312143033143420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42461181 (or 42461179 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 34.

Adding to 312143033143420 its reverse (24341330341213), we get a palindrome (336484363484633).

The spelling of 312143033143420 in words is "three hundred twelve trillion, one hundred forty-three billion, thirty-three million, one hundred forty-three thousand, four hundred twenty".